// Copyright (c) 2008-2010, Arne Claus
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
// following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions and the following 
//   disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//   disclaimer in the documentation and/or other materials provided with the distribution.
// - Neither the name Arne Claus nor the names of any contributors may be used to endorse or promote products
//   derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef __INCLUDED_CBL_AUTOBUFFER_H__
#define __INCLUDED_CBL_AUTOBUFFER_H__

#include "CBL_Defines.h"
#include "CBL_Memory.h"
#include <cstdlib>

CB_SUBNAMESPACE_START(Memory)

//! \note	Copy functions will invalidate the original pointer and set it to NULL.
//!			The wrapped object will be destroyed on delete.

// -------------------------------------------------------------------------------------------------
//	CAutoBuffer
// -------------------------------------------------------------------------------------------------

template <typename TType>
class CAutoBuffer
{
public:
	
	CAutoBuffer();	
	
    //! \note Actually DOES change the copy
    CAutoBuffer(const CAutoBuffer& _rCopy);
    
    CAutoBuffer(TType*& _rpBuffer, uint32 _SizeByte);
    
	~CAutoBuffer();
    
public:
	
    CB_FORCEINLINE TType* CB_INLINE_ATTR GetBuffer()					{ return m_pBuffer; }
	CB_FORCEINLINE const TType* CB_INLINE_ATTR GetBuffer() const		{ return m_pBuffer; }
	
    CB_FORCEINLINE bool CB_INLINE_ATTR IsValid() const					{ return m_pBuffer != NULL; }
	CB_FORCEINLINE uint32 CB_INLINE_ATTR GetSizeByte() const			{ return m_Size; }
	
    
    CB_FORCEINLINE void CB_INLINE_ATTR SetBuffer(TType*& _rpBuffer, uint32 _Size);
    
	//! \note Actually DOES change the copy
    CB_FORCEINLINE CAutoBuffer& CB_INLINE_ATTR operator = (const CAutoBuffer& _rCopy);
    
	CB_FORCEINLINE TType* CB_INLINE_ATTR Retain();	
	CB_FORCEINLINE void CB_INLINE_ATTR Release();
    
private:
	
    uint32 m_Size;
	TType* m_pBuffer;
};

#include "CBL_AutoBuffer.hpp"

CB_SUBNAMESPACE_END

#endif